var book1 = {
    title: 'The Great Gatsby',
    author: '<NAME>',
    price: 10.99
};
var book2 = {
    title: 'To Kill a Mockingbird',
    author: '<NAME>',
    price: 8.99,
    isAvailable: true
};
console.log("book1", typeof book1);
console.log("book2", typeof book2);
